sedna: 4.5 billion years ago, when the solar system was still young, a little planet called “theia” crashed into earth.

sedna: some of the debris fell back down to earth, but the rest gathered to form the moon.

sedna: so part of the moon comes from the planet theia, and part of it comes from earth, meaning the moon is like mother earth’s little baby.

sedna: anyway, that’s why if it’s a girl, we should name our first child “luna”.
dini: …”our”? …”first”?